Hamilton Watch Co., Lancaster, Penn., model 21 marine chronometer, 14 jewel key wind and set, straight line damascened nickel plate movement, with spring detent escapement and chronometer balance with helical hairspring, Arabic numeral metal dial with

Hamilton Watch Co., Lancaster, Penn., model 21 marine chronometer, 14 jewel key wind and set, straight line damascened nickel plate movement, with spring detent escapement and chronometer balance with helical hairspring, Arabic numeral metal dial with wind indicator, black painted steel spade and poker hands, contained in a gimbaled brass bowl, and mounted in a mahogany box with brass hardware, the inside of the box top with instruction label, and contained in a larger, cherry outer box, serial #2E7317, c1940 inner box good, with minor scrapes and scratches, label with loss at bottom, interior hardware with tarnish and minor corrosion, dial and hands good, movement dirty, oily, and with minor scratches, running, would benefit from service, outer box with scratches and tape residue, bottom with splits and losses to finish